[Athena] Hack to display favicons for web activities in overview mode

athena/resource_manager/resource_manager_unittest.cc

Index: athena/resource_manager/resource_manager_unittest.cc
diff --git a/athena/resource_manager/resource_manager_unittest.cc b/athena/resource_manager/resource_manager_unittest.cc
index 4d49f0c43034f8dcb46f598439ad23093166e444..253e57974a009ce5a6731666acb8ce19b02d1824 100644
--- a/athena/resource_manager/resource_manager_unittest.cc
+++ b/athena/resource_manager/resource_manager_unittest.cc
@@ -51,6 +51,7 @@ class TestActivity : public Activity,
   virtual void Init() OVERRIDE {}
   virtual SkColor GetRepresentativeColor() const OVERRIDE { return 0; }
   virtual base::string16 GetTitle() const OVERRIDE { return title_; }
+  virtual gfx::ImageSkia GetIcon() const OVERRIDE { return gfx::ImageSkia(); }
   virtual bool UsesFrame() const OVERRIDE { return true; }
   virtual views::View* GetContentsView() OVERRIDE { return view_; }
   virtual void CreateOverviewModeImage() OVERRIDE {}